El-kerdawy M M, Samour A A, El-agamey A A
Pharmazie. 1975 Feb;30(2):76-7. doi: 10.1002/chin.197522257.
Alpha-Thienyl-N-substituted acrylamides that possess analogous structures to known schistosomicidal agents were synthesized. Two chalcones were prepared by condensing alpha-thiophenealdehyde and acetophenone or its o-hydroxy derivative. Cyclization of the chalcones with hydrazine hydrate or monosubstituted hydrazines afforded 1.3.5 trisubstituted 2-pyrazoline